Improvement in manufacture of cores



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Lette/rs Patent No. 91,008, dated June- 8, A1869.

IMPROVEMENT IN MANUFACTURE OF ORES.

The Schedule referred to in these Letters Patent and making part of thesame.

To whom 'it mag/'concern .Be it kuown'that I, SAMUEL FULTON, ofConshohocken, in the county of Montgomery, and State'of Pennsylvania,have invented a new and useful Improvement in Making Pipe-Cores; and Ido hereby declare that the following is a full, clear, and exactdescriptionA thereof, which will enable others skilled in the art tomake and use the same, reference being had to the accompanying drawings,forming part of this specification. y

This invention relates to a new and useful improvement in makingv the.cores for casting metal pipes for conveying water, gas, compressed orheated air, and for other purposes, and consists in apparatushereinafter described, whereby I am enabled to construct the core in anupright position, which greatly facilitates the operation of forming thecore.

In the accompanying drawing the ligure represents the core-bar, with theforming-tube in place around thebar, the tube being shown in section.

A is the bar, or centre of the core, which may be formed and preparedfor the sand r loam in the usual manner. It may be made collapsible, ifdesired, and

of any required length and diameter.

B is the forming-tube, which may be made with an expanded upper end, orbell-shaped, for containing the proper quantity of sand-or loam forcovering the bar.

When placed in a vertical position, as seen in the drawing, and filledwith the proper material, the forming-tube B is raised with the crane orby other means upwarch leavingvthe bar A covered with the requisitequantity of sand, loam, or other material, which, in the drawing, isrepresented by O, leaving the core of the diameter of the lower end ofthe tube B, as seen in Figure 2.

The savingin time secured by this method of? making pipe-core is fveryimportant, more especially in the manufacture of the smaller sizes ofiron pipe, and its advantages will be readily understood and appreciatedby fonndrymen.

Having thus described my invention,

I claim as new, and desire to secure by Letters Patent- In combinationwith the centralbarof a core for casting metal pipes, the forming-tubeB, substantially asand for the purposes described.

The above specification of my invention signedby me, this 6th day of Jannary, 1869.

SAMUEL FULTON.

Witnesses A UGT. SCHWARZE, EDWD. H. Lvonr'r.

